呼吸
材料科学
声学
电容感应
LCR仪表
呼吸
波形
电容
电容器
电极
生物医学工程
电气工程
电压
化学
医学
工程类
麻醉
物理
物理化学
解剖
作者
Ji-Seon Kim,TranThuyNga Truong,Jooyong Kim
出处
期刊:Polymers
[MDPI AG]
日期:2023-01-18
卷期号:15 (3): 503-503
被引量:1
标识
DOI:10.3390/polym15030503
摘要
This study presents a respiration sensor that is dependent on a parallel capacitor, including connection lines and electrodes embroidered on textiles. First, characterizations of the respiration capacitor using a silver thread, including a combination of porous Eco-flex simulating air in the lungs due to respiration, were evaluated using an LCR meter. Second, the effects of air gaps on the detection of respiration motions according to the change in electrode distance under pressure were presented. The data values were measured from 1 to 300 kHz using an LCR meter and dielectric test fixture. Third, actual breathing was examined in four patterns: normal breathing, deep breathing, hyperventilation, and apnea. The test was performed after fabricating a clothing-type breathing sensor. Finally, the change in capacitance for actual respiration was determined by wearing a clothing-type respiration sensor based on the data collected. The effectiveness of the respiration sensor was demonstrated by measuring it to discern all waveforms, cycles, and ranges associated with the breathing pattern.
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